Suction device for unhairing machines



Feb. 16 1926. 1,573,575

N. REINGOLD r AL SUCTION DEVICE FOR UNHAIRING MACHINES Filed March 20, 1924 2 Sheets-Sheet l ,l a l- 1L.

Feb. 16 1926 1,573,575

N. REINGOLD ET AL SUCTION DEVICE FOR UNHAIRING MACHINES Filed March 20, 1924 2 Shoots-Shoot 2 Patented Feb. 16, 1926.

V UNITED STATES;

1,513,575 PATENT o-FFlcE.

NOAH REINGOLD AND MEYER REINGOLD, OF NEW YORK, N. Y.

SUCTION DEVICE non UNHAIRILIG MACHINES.

Application filed March 20, 1924. Serial No. 700,543.

To all whom it may concern.

Be it known that we, NOAH RniNeoLD and 'Mnynn BnrNeoLn, citizens of the United Machines, of which the following is a specification.

This invention relates to an improvement in suction devices for unhairing machines. In unhairing machines employing a rotary knife, no provision has been made for removing the dust, powders, and impurities in the skins being treatechand as a result the atmosphere becomes filled with it, making it almostimpossible for an attendant to remain for any length of time on the job on account of having to inhale the fine dust and impurities.

This invention prevents all this, and consists in the application of a'detachable suction device to a machine of this character employing a rotating knife.

The invention consists in a hood made of two parts hinged together, and of sufiicient size to embrace and afford clearance for the rotating knife, the hood being so constructed that it encloses this knife and confines the dust, powders, and impurities as the unhairing takes place, whence it is removed by I suction, thus preventing the air from becoming laden and contaminated with the dust and impurities.

In the accompanying drawings Fig. 1 is a front view;

Fig. 2 is a rear view;

Fig. 3 is a vertical section; and

Fig. 4 is an end view showing a slightly modified form.

The hood is made in an upper and lower section 1 and 2, respectively, each of which is approximately in the form of a half cylinder. These sections 1 and 2 are connected by hinge 3 at their rear, and they are recessed at the center 4- to receive the shaft 5 which carries the rotating knife 6.

The lower section 2 has an open mouth 7, where the knives 6 and 8 come together in the unhairing operation, and through this month 7 hair is drawn, the suction being applied through the discharge pipe 9 at the rear.

In this way the hair removed, and all dust, powders, and impurities are imme diately drawn off and disposed of, instead of being permitted to fill the air as her tofore.

The bed knife 8 in machines of thisv characterswings up and down tomeet the rotating knife 6 with each complete revolution, and a flexible apron 10 of canvas or other material extends from the base of the bedknife or some convenient point to the lower edge of the mouth 7 of the hood. In this way, the opening through the mouth is of comparatively limited area, and the size of the opening through the mouth varies with the relative position of the rotating cuttingknife and the bedknife.

For convenience in handling the hood, it has a handle 11 atthe top, and the sections are held together when clamped around the shaft 5 by some simple form of springcatch 12, as shown in Fig. l.

The cover or hood is supported by brack ets 13 on each end bolted to some rigid part of the machine.

While the construction shown in Figs. 1, 2 and 3 is preferred, a form of gate 14;, such as illustrated in Fig. 4 has been tried. This is in the form of a gate of some light material, such as sheet-metal or the like, hinged 15, and held under tension by a spring 16 with its free edge resting upon the bedknife 8 or the cam 17.

The foregoing results could be obtained 'without employing either apron 10 or gate 14:. One or the other, however, is generally preferred.

e claim:

1. A device of the character described having side and end Walls, a rotary knife mounted therein, said side and end walls having a cutout portion forming an open mouththrough which the end of the rotary knife protrudes at this point during rotation, and a movable bed-knife which oscillates to meet the rotary knife.

2. A device of the character described having side and end walls, a rotaryknife, mounted therein, said side and end walls having a cutout portion forming an open mouth through which the end of the rotary knife protrudes at this point during rotation, a movable bed-knife whichoscillates to meet therotary knife, and means actuated and controlled by the bed-knife for partially closing said mouth.

. 3. A device of the character described having side and end walls, a rotary knife mounted therein, said side and ends walls having a cutout portion forming an open mouth through Which the end of the rotary knife protrudes at this point during rotation, a movable bed knife, and flexible means extending from the bed knife to the lower edge of the mouth for partially closing said mouth.

4. A device of the character described in eluding upper and lower sections hinged together and having an open mouth formed therein, a rotary knife mounted Within the device, a movable bed knife, and flexible means extending from the bed knife to the lower edge of the mouth for partially closing said mouth. i

L 5. device of the character described ineluding upper and lower sections hinged together a rotary knife mounted therein, the loWer section having a cutout portion in the side and end Walls thereof forming an open mouth extending throughout the length of said lower section, an air pip-e connected with said lower section substan tially opposite the mouth, a movable bed knife for cooperating with the rotary knife, and means connected with the bed knife and flexibly connected With the lower edge of the month for partially closing said month.

In testimony whereof we atlix our sign tures.

NOAH REINGOLD.

MEYER REINGOLD. 

